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TECHNICAL NOTICE (September 30, 2009)

Additions to the MARC Code Lists for Relators, Sources, Description Conventions

Network Development and MARC Standards Office
Library of Congress


The codes listed below have been recently approved for use in MARC 21 records. The codes will be added to MARC Code Lists for Relators, Sources, Description Conventions.

The codes should not be used in exchange records until after October XX, 2009. This 60-day waiting period is required to provide MARC 21 implementers time to include newly-defined codes in any validation tables they may apply to the MARC fields where the codes are used.

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Field 034 (Coded Cartographic Mathematical Data)

The following codes are for use in subfield $2 in field 034 (Coded Cartographic Mathematical Data) in the Authority and Bibliographic formats.

The following code was previously defined for usage in subfield $2 in appropriate 6XX fields (Subject Added Entries/Index Terms) in Bibliographic and Community Information records; subfield $2 in fields 700-754 (Index Terms) in Classification records; subfield $2 in fields 700-788 (Heading Linking Entries) in Authority records; and subfield $f in field 040 (Cataloging Source) in Authority records. Usage has been expanded for field 034 in Authority and Bibliographic records.

The Library of Congress, Network Development and MARC Standards Office provides information about existing and newly assigned MARC codes on its Web site (www.loc.gov/marc/) as well as notices such as these to subscribers to its MARC listserv (marc@loc.gov).


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